cpc for shower?

[Shootbolt]

Zs= 0.3, Ze= 0.17

 

[telectrix]

OK. from Zs= 0.3, PEFC = 230/0.3 = 766A.

so S = sq.rt.(766sq, x 0.1)/115 = 2.106.

 

[Shootbolt]

10mm t&e 4mm cpc 6.44 mOhms/m x 17= 109.48 x 1.2= 131.38
131.38/1000= 0.13138 ohms + Ze (0.17)= 0.3
230/0.3= 766.67, I used 240V as this is what is coming in 240/0.3= 800
766.67 squared= 587782.8889 x 0.1 = 58778.28889 square root of this = 242.44
242.44/115= 2.1
next up 2.5mm min. 4mm in this case.

 

[Shootbolt]

OK. from Zs= 0.3, PEFC = 230/0.3 = 766A.

so S = sq.rt.(766sq, x 0.1)/115 = 2.106.

Yeah thats the same, so its looks ok then.

 

[telectrix]

close enough.